The 80% Lower Patriot Pack is a complete hardware kit for finishing your 80% lower receiver. This is for builders who want reliable, American-made components without hunting down individual parts. Since hitting our shelves in January 2026, this pack has proven itself with a low return rate—customers consistently get exactly what they need for a clean build.
Why This One?
- Complete Build Kit: Contains all the necessary pins, springs, and detents to finish your 80% lower. No missing pieces.
- Minimal Added Weight: As our staff notes, the total weight is barely noticeable once installed, adding under an ounce to your carry.
- Precision Fit: Components are machined to match standard lower receiver specifications for smooth assembly.
- Domestic Sourcing: All parts are manufactured in the United States from quality materials.
- Streamlined Sourcing: Saves time and shipping costs versus ordering each small part separately.
Full Spec Sheet
| Kit Contents | All pins, springs, detents, and buffer retainer for a complete lower build. |
| Material | Steel and spring steel components. |
| Finish | Phosphate coating on steel parts for corrosion resistance. |
| Compatibility | Designed for standard AR-15/M4 pattern 80% lower receivers. |
| Weight (measured) | 3.9 oz |
| Country of Origin | United States |
| Packaging | Labeled, compartmentalized bag for organized assembly. |
Q & A
Does this kit include a buffer tube or stock?
No. This is a lower parts kit. It includes the internal pins, springs, and detents required to complete the fire control group and other lower receiver functions. The buffer tube, stock, and buffer assembly are separate components.
Will these parts fit my Polymer80 lower?
Yes. These components are designed to fit standard mil-spec AR-15 pattern lowers, including Polymer80’s 80% lower receivers. They provide a reliable fit and function.
What tools are needed for installation?
You will need standard gunsmithing tools: roll pin punches, a hammer, and a vise block for your lower receiver is highly recommended. A set of needle-nose pliers is also helpful for handling small springs and detents.
✅ Orders ship within one business day
✅ Discreet, unmarked shipping
✅ Hassle-free 30-day returns
✅ Your payment data is never stored
Reviews
There are no reviews yet.